Liberty Pumps Ascent II-ESW Manuel D'installation page 15

Problem
No electrical power
The macerator does not start up.
• Green LED is off.
Solid debris in basket
During a pumping cycle, a rattling
noise is emanating from the
macerator.
Pump is unable to evacuate tank
Alarm sounds frequently (pump
unable to evacuate tank).
General plumbing
The macerator pulses for no
apparent reason.
General plumbing
Water backs up into shower tray.
• Alarm is not activated.
General plumbing
Macerator is noisy when running.
General plumbing
During the draining of the bathtub,
the alarm sounds and/or water
backs up into the toilet.
5755000H
Table 2. Troubleshooting Matrix (continued)
Possible Cause
The macerator is either not plugged in,
supply breaker is turned off, or GFCI
receptacle has tripped.
Solid object larger than ½" is trapped in the
cutting basket of the macerator.
Damaged impeller.
Volute inlet clogged.
Internal hose damaged.
Air lock.
Application.
Water leakage from the toilet reservoir.
Check valve failure of the macerator.
Blockage or inadequate slope of pipe.
The inlet flappers of the macerator are not
functioning.
Rattling piping.
Foreign object in cutter basket.
The inflow is greater than the macerator
can handle.
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Corrective Action
Check electrical power source.
The access cover should be removed for manual
cleaning. See Access Cover on page 10.
Replace impeller. See Impeller Access on page 12.
Clean volute inlet. See Accessibility to Motorized
Cartridge on page 11.
Confirm the internal hose is functioning properly;
if not, replace. See Interconnect Hose on page 12.
The volute has a passageway to allow trapped air
to escape. This passageway must be cleaned of
obstruction. See Accessibility to Motorized
Cartridge on page 11.
The pumping capacity has been exceeded by the
rate of incoming water. Either reduce flow coming
into the macerator or reduce the pumping head.
Check flush valve and related components in the
reservoir tank.
The discharge flange contains a check valve that
requires cleaning or replacement. See Check
Valve on page 10.
Clear blockage in piping, or increase pitch of
discharge pipe. Typically ¼" drop per foot is
adequate for a gravity drain.
Clear any buildup in the macerator holding tank
that is preventing the flappers from opening. See
Accessibility to Motorized Cartridge on page 11.
Both the discharge and vent plumbing should be
secured using appropriate pipe clamping.
The access cover should be removed for manual
cleaning. See Access Cover on page 10.
A full port ball valve should be installed between
the tub and macerator. Throttle down or partially
close the ball valve until the macerator can handle
the drainage rate from the tub.
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